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Identifiers, Literal Constants and Punctuation in C Language

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Identifiers, Literal Constants and Punctuation in C Language

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Questions and Answers

What is the purpose of preprocessor directives in C programming?

To declare local variables

To define global variables

To write comments that are ignored by the compiler

To instruct the compiler to perform transformations before compiling (correct)

Which part of a C program is defined by global declarations and function definitions?

Local declarations

Main function

Preprocessor directives

Program structure (correct)

What is the role of the main function in a C program?

Call other functions within the program

Execute statements in sequence from beginning to end (correct)

Define local variables

Instruct the compiler on how to compile the program

Why are comments used in C programming?

To document the code for human readers without affecting program execution Signup and view all the answers

Which aspect of a C program do local declarations describe?

Data used only within a specific function Signup and view all the answers

What is the primary purpose of reserved words in C programming?

Specify which tokens are valid and form part of the C language syntax Signup and view all the answers

How are identifier names chosen in C programming?

By ensuring they are meaningful to make the program readable Signup and view all the answers

Why does every C program have one function named 'main'?

'Main' indicates the primary starting point for program execution Signup and view all the answers

What distinguishes global declarations from local declarations in a C program?

Global declarations are visible throughout the entire program, while local declarations are visible only within specific functions. Signup and view all the answers

What specifies which tokens are valid and indicates the expected order of tokens in a C program?

Syntax rules Signup and view all the answers